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RISS 인기검색어
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- 저자 : Hale (검색결과 71 건)
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Automatic Generation of Training Character Samples for OCR Systems
Ha Le,Soo Hyung Kim,In Seop Na,Yen Do,Sang Cheol Park,Sun Hwa Jeong 한국콘텐츠학회 2012 International Journal of Contents Vol.8 No.3
In this paper, we propose a novel method that automatically generates real character images to familiarize existing OCR systems with new fonts. At first, we generate synthetic character images using a simple degradation model. The synthetic data is used to train an OCR engine, and the trained OCR is used to recognize and label real character images that are segmented from ideal document images. Since the OCR engine is unable to recognize accurately all real character images, a substring matching method is employed to fix wrongly labeled characters by comparing two strings; one is the string grouped by recognized characters in an ideal document image, and the other is the ordered string of characters which we are considering to train and recognize. Based on our method, we build a system that automatically generates 2350 most common Korean and 117 alphanumeric characters from new fonts. The ideal document images used in the system are postal envelope images with characters printed in ascending order of their codes. The proposed system achieved a labeling accuracy of 99%. Therefore, we believe that our system is effective in facilitating the generation of numerous character samples to enhance the recognition rate of existing OCR systems for fonts that have never been trained.
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Pyrolysis of Phragmites Australis and characterization of liquid and solid products
Hale Sutcu 한국공업화학회 2008 Journal of Industrial and Engineering Chemistry Vol.14 No.5
In this study, an investigation was conducted in order to find out whether Phragmites Australis can be utilized in various ways by means of pyrolysis in a tubular fixed-bed system. To this end, a study was carried out to investigate the effect of the pyrolysis temperature, heating rate, sweep gas flow rate and the size of Phragmites Australis on pyrolysis. The maximum tar yield was achieved at 550 8C pyrolysis temperature, a heating rate of 25 8C/min and a sweeping gas flow rate of 100 ml/min. The average chemical composition of the tar obtained was established by elemental analysis and its structural analysis was conducted by 1H NMR spectrum and FTIR spectrum. Moreover, elemental and proximate analyses were conducted of the chars obtained in all experimental conditions to collect information on their structure.
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Pyrolysis of peat: Product yield and characterization
Hale Sutcu 한국화학공학회 2007 Korean Journal of Chemical Engineering Vol.24 No.5
of peat obtained from Yenia a, Bolu, Turkey was conducted in a fixed-bed tube furnace undervarious conditions, and variations in the structure of the char, tar and gas products were examined. The chars produced% was obtained at a heating rateof 20oC/min, a temperature of 450oC, a sweeping gas flow rate of 100 ml/min and a 0.5-2.0 m size range. The chem-ical composition of the tar was examined by elemental analysis, FTIR spectroscopy, 1H-NMR spectroscopy and columnchromatography. The chemical composition of the tar with dense aliphatic structure was established to be CH1.22O0.25N0.02.The composition of the gases obtained at a heating rate of 20oC/min for the 0.5-2.0 m size range was examined by
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Viewpoints of Family Caregivers about Posttraumatic Growth in Cancer Patients
Tahory, Hale,Mohammadian, Robab,Rahmani, Azad,Seyedrasooli, Alehe,Lackdezajy, Sima,Heidarzadeh, Mehdi Asian Pacific Journal of Cancer Prevention 2016 Asian Pacific journal of cancer prevention Vol.17 No.2
Background: There is little information about the objectivity of posttraumatic growth experienced by cancer patients. So, the aim of present study was to investigate the viewpoints of family caregivers regarding posttraumatic growth in cancer patients. Materials and Methods: This descriptive study was conducted in one referral medical center in East Azerbaijan Province in northwest of Iran. 120 primary family caregivers of cancer patients participated with a convenience sampling method. The Posttraumatic Growth Inventory (PTGI) and Perception about Prognosis Scale (PPS) were applied for data collection with analysis performed using SPSS statistical software. Results: Family caregivers believed that their patients had a good prognosis (score 3.95 from 5). The total score of PTGI was 60.7 (SD=18.8) that indicates a moderate level of growth as reported by family caregivers. Conclusions: Family caregivers of cancer patients have incorrect viewpoints about the prognosis of their patients and reported moderate levels of growth. These findings showed that posttraumatic growth among cancer patients is an objective phenomenon.
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KATHLEEN HALE 한국행정학회 2013 International Review of Public Administration Vol.18 No.3
This article describes and analyzes the regulation of transparency in American nonprofit organizations in comparison to similar regulation of American public sector agencies. Transparency is a symbol for accountability and a critically important dimension of nonprofit organizations, which are private and voluntary but chartered by government for public purposes. Federal policy aimed at nonprofit transparency relies on formal regulation, and some guidance can be drawn from examining nonprofit regulation in comparison to the formal regulatory schemes designed to ensure transparency of public sector government agencies. However, formal transparency regulation of nonprofits is not as extensive as that of the public sector, and current illustrations from the nonprofit arena indicate that formal regulation does not address typical public concerns about nonprofit transparency. Instead, nonprofits may need to turn to normative sector values, including trust and collaboration, in order to be considered transparent in the current environment.
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Karakas, Hale-Canbaz The Korean Fiber Society 2004 Fibers and polymers Vol.5 No.1
PET yarns textured at different texturing conditions were treated with superheated steam or dry heat at different temperatures for different times. The effects of the treatment conditions on the thermomechanical and structural changes of the yarn were examined by shrinkage, X-ray diffraction and birefringence measurements. With increase in superheated steam temperature, the crystalline orientation factor and birefringence decreased, whereas crystal size increased. Dry heat treatment had a smaller effect on shrinkage and structural properties in comparison with superheated steam treatment. The additional shrinkage after texturing process was investigated. The effect of heat-setting in both media was more significant at $200^{\circ}C$. The time dependence of the properties was not linear.
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Bakır Hale 대한전기학회 2023 Journal of Electrical Engineering & Technology Vol.18 No.3
Photovoltaic (PV) solar energy is one of the most critical renewable energy sources, which has grown worldwide in the last decade. PV markets are becoming highly competitive and increasing the need for research and development in efficiency and reliability optimization, maintenance and diagnostics of key components such as PV modules. It is becoming of particular interest to current PV plant operators, maintenance engineers future investors and the research and development sector of the PV industry. This study presents an analysis and a hands-on review of detected faults in PV modules with infrared thermal (IRT) diagnostics, which are becoming increasingly popular in the field. In the present study, the causes and types of faults were analyzed by performing thermal imaging in solar power plants (SPPs) in Turkey. According to the flight tests, it has been determined from the results obtained from the SPP in Turkey that the connection fault problem, cracked broken panels, broken bypass diodes, shading and exploded fuse affect the panels significantly and have an important efficiency regarding production. Improvements in energy production in SPP are possible when the technical connection fault in the field is resolved. In particular, in the first main part of this study, the characteristics of the most common fault types of PV modules were reviewed and the PV system, PV module efficiency, and system configuration were explained and information about the thermal drone and flight information used, SPP was provided. Then, the second part discussed of the results of detected faults in field areas with IRT-based diagnostics and thermal image processing, tracked by a discussion of the future prospects, recommendations and challenges for understanding and diagnosing faults.
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